APA
United Nations Economic and Social Commission for Western Asia, United Nations Economic and Social Commission for Western Asia, . (1986). Introduction of biogas technology in democratic Ye. New York: United Nations USA.
Chicago
United Nations Economic and Social Commission for Western Asia, United Nations Economic and Social Commission for Western Asia, . 1986. Introduction of biogas technology in democratic Ye. New York: United Nations USA.
Harvard
United Nations Economic and Social Commission for Western Asia, United Nations Economic and Social Commission for Western Asia, . (1986). Introduction of biogas technology in democratic Ye. New York: United Nations USA.
MLA
United Nations Economic and Social Commission for Western Asia, United Nations Economic and Social Commission for Western Asia, . Introduction of biogas technology in democratic Ye. New York: United Nations USA. 1986.